<template>
    <div id="main-container" class="main-container" :class="
      $store.state.app.collapse ? 'position-collapse-left' : 'position-left'
    ">
        <!-- 标签页 -->
        <div class="tab-container">
            <el-tabs class="tabs" :class="$store.state.app.collapse ? 'position-collapse-left' : 'position-left'"
                v-model="mainTabsActiveName" :closable="true" type="card" @tab-click="selectedTabHandle"
                @tab-remove="removeTabHandle">
                <el-dropdown class="tabs-tools" :show-timeout="0" trigger="hover">
                    <div style="font-size:20px;width:50px;" title="页面操作">
                        <i class="el-icon-arrow-down"></i>
                    </div>
                    <el-dropdown-menu slot="dropdown">
                        <el-dropdown-item @click.native="tabsCloseCurrentHandle">关闭当前标签</el-dropdown-item>
                        <el-dropdown-item @click.native="tabsCloseOtherHandle">关闭其它标签</el-dropdown-item>
                        <el-dropdown-item @click.native="tabsCloseAllHandle">关闭全部标签</el-dropdown-item>
                        <el-dropdown-item @click.native="tabsRefreshCurrentHandle">刷新当前标签</el-dropdown-item>
                    </el-dropdown-menu>
                </el-dropdown>
                <el-tab-pane v-for="item in mainTabs" :key="item.name" :label="item.title" :name="item.name">
                    <span slot="label">
                        <i :class="item.icon"></i>
                        {{ item.title }}
                    </span>
                </el-tab-pane>
            </el-tabs>
        </div>
        <!-- 主内容区域 -->
        <div class="main-content">
            <keep-alive>
                <transition name="fade" mode="out-in">
                    <router-view></router-view>
                </transition>
            </keep-alive>
        </div>

        <div class="footer">
            <el-footer>&copy;紫光云(南京)技术有限公司 2020版权所有</el-footer>
        </div>
    </div>
</template>

<script>
export default {
    data () {
        return {};
    },
    computed: {
        mainTabs: {
            get () {
                return this.$store.state.tab.mainTabs;
            },
            set (val) {
                this.$store.commit("updateMainTabs", val);
            }
        },
        mainTabsActiveName: {
            get () {
                return this.$store.state.tab.mainTabsActiveName;
            },
            set (val) {
                this.$store.commit("updateMainTabsActiveName", val);
            }
        }
    },
    methods: {
        // tabs, 选中tab
        selectedTabHandle (tab) {
            tab = this.mainTabs.filter(item => item.name === tab.name);
            if (tab.length >= 1) {
                this.$router.push({ name: tab[0].name });
            }
        },
        // tabs, 删除tab
        removeTabHandle (tabName) {
            this.mainTabs = this.mainTabs.filter(item => item.name !== tabName);
            if (this.mainTabs.length >= 1) {
                // 当前选中tab被删除
                if (tabName === this.mainTabsActiveName) {
                    this.$router.push(
                        { name: this.mainTabs[this.mainTabs.length - 1].name },
                        () => {
                            this.mainTabsActiveName = this.$route.name;
                        }
                    );
                }
            } else {
                this.$router.push("/");
            }
        },
        // tabs, 关闭当前
        tabsCloseCurrentHandle () {
            this.removeTabHandle(this.mainTabsActiveName);
        },
        // tabs, 关闭其它
        tabsCloseOtherHandle () {
            this.mainTabs = this.mainTabs.filter(
                item => item.name === this.mainTabsActiveName
            );
        },
        // tabs, 关闭全部
        tabsCloseAllHandle () {
            this.mainTabs = [];
            this.$router.push("/");
        },
        // tabs, 刷新当前
        tabsRefreshCurrentHandle () {
            var tempTabName = this.mainTabsActiveName;
            this.removeTabHandle(tempTabName);
            this.$nextTick(() => {
                this.$router.push({ name: tempTabName });
            });
        }
    }
};
</script>

<style scoped lang="scss">
.main-container {
    padding: 0 5px 5px;
    position: absolute;
    top: 60px;
    left: 1px;
    right: 1px;
    bottom: 0px;
    // background: rgba(56, 5, 114, 0.5);
    .tabs {
        position: fixed;
        top: 60px;
        right: 50px;
        padding-left: 0px;
        padding-right: 2px;
        z-index: 1020;
        height: 40px;
        line-height: 40px;
        font-size: 14px;
        background: rgb(255, 253, 255);
        border-color: rgba(200, 206, 206, 0.5);
        // border-left-width: 1px;
        // border-left-style: solid;
        border-bottom-width: 1px;
        border-bottom-style: solid;
    }
    .tabs-tools {
        position: fixed;
        top: 60px;
        right: 0;
        z-index: 1020;
        height: 40px;
        // padding: 0 10px;
        font-size: 14px;
        line-height: 40px;
        cursor: pointer;
        border-color: rgba(200, 206, 206, 0.5);
        border-left-width: 1px;
        border-left-style: solid;
        border-bottom-width: 1px;
        border-bottom-style: solid;
        background: rgba(255, 255, 255, 1);
    }
    .tabs-tools:hover {
        background: rgba(200, 206, 206, 1);
    }
    .main-content {
        position: absolute;
        top: 45px;
        left: 5px;
        right: 5px;
        bottom: 50px;
        padding: 5px;
        // background: rgba(209, 212, 212, 0.5);
    }

    .footer .el-footer {
        position: fixed;
        line-height: 60px;
        justify-content: center;
        background-color: #eeeeee;
        width: 100%;
        margin-bottom: 0px;
        margin-top: -40px;
        flex: 0 0 auto;
        height: 60px;
        line-height: 60px;
        text-align: center;
        font-size: 16px;
        border-top: 1px solid #d8dfe7;
        bottom: 0px;
        left: 0px;
        padding: -10px 00px;
        right: 0;
        background: #fff;
    }
}
.position-left {
    left: 200px;
}
.position-collapse-left {
    left: 65px;
}

.modal-open {
    overflow-y: scroll;
}

.container {
    padding-right: 15px !important;
}
</style>
